Aiwa XR-M88 Service Manual
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Aiwa XR-M88 Service Manual

Aiwa XR-M88 Service Manual

Compact disc stereo system
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See also: Service Manual
SERVICE MANUAL
COMPACT DISC STEREO SYSTEM
SYSTEM
XR-M88
XR-M89
This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No.09-996-333-3T2).
• BASIC TAPE MECHANISM : TN-708C-128R
• BASIC CD MECHANISM : KSM-620AAA
RECEIVER
RX-LM88
RX-LM89
S/M Code No. 09-996-333-3R2
XR-M88
XR-M89
CD/
SPEAKER
CASSETTE
FD-LM88
SX-LM200
FD-LM89
SX-LM200
K(S)
EZ(S)

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Summary of Contents for Aiwa XR-M88

  • Page 1 XR-M88 K(S) XR-M89 EZ(S) SERVICE MANUAL • BASIC TAPE MECHANISM : TN-708C-128R COMPACT DISC STEREO SYSTEM • BASIC CD MECHANISM : KSM-620AAA SYSTEM RECEIVER SPEAKER CASSETTE XR-M88 RX-LM88 FD-LM88 SX-LM200 XR-M89 RX-LM89 FD-LM89 SX-LM200 This Service Manual is the “Revision Publishing” and replaces “Simple Manual”...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS........................... 3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ..........4 Precaution to replace Optical block ......................4 MODEL NO. RX-LM88/RX-LM89 ELECTRICAL MAIN PARTS LIST ......................5-7 TRANSISTOR ILLUSTRATION ....................... 7 FL (13-ST-36GNAK) GRID ASSIGNMENT/ANODE CONNECTION ............8 WIRING-1 (POWER AMP) ........................

  • Page 3: Specifications

    SPECIFICATIONS • Design and specifications are subject to change without notice. • Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. • The word “BBE” and the “BBE symbol” are trademarks of BBE Sound,Inc.

  • Page 4: Protection Of Eyes From Laser Beam During Servicing

    PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully the CAUTION instructions below when servicing. Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous WARNING! radiation exposure.

  • Page 5: Model No. Rx-Lm88/Rx-Lm89

    MODEL NO. RX-LM88 ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C183 87-010-322-080 C-CAP,S 100P-50 J CH C184 87-010-322-080 C-CAP,S 100P-50 J CH 87-070-127-110 IC,LC72131 D C185 87-010-322-080 C-CAP,S 100P-50 J CH 87-A20-913-010 IC,LA1837NL C186...
  • Page 6 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C225 87-012-157-080 C-CAP,S 330P-50 J CH<EZ> C755 87-012-286-080 CAP, U 0.01-25 C226 87-012-157-080 C-CAP,S 330P-50 J CH<EZ> C756 87-012-286-080 CAP, U 0.01-25 C265 87-010-546-080 CAP, ELECT 0.33-50V C757 87-012-188-080 C-CAP,U 47P-50 CH C266...

  • Page 7: Transistor Illustration

    FL (13-ST-36GNAK) GRID ASSIGNMENT/ANODE CONNECTION GRID ASSIGNMENT REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C962 87-010-401-080 CAP, ELECT 1-50V L791 87-A50-027-010 COIL,1 POLE MPX(TOK) CF801 87-008-423-010 CERAMIC FILTER, SFE10.7 L792 87-A50-027-010 COIL,1 POLE MPX(TOK) CF802 82-785-747-010 CF MS2 GHY R L832...

  • Page 8: Wiring-1 (Power Amp)

    WIRING-1 (POWER AMP) AC230V 50Hz MODEL MODEL...

  • Page 9: Schematic Diagram-1 (Power Amp)

    SCHEMATIC DIAGRAM-1 (POWER AMP) EZ MODEL K MODEL: EZ MODEL:...

  • Page 10: Wiring-2 (Front)

    WIRING-2 (FRONT) EZ MODEL EZ MODEL K MODEL K MODEL: EZ MODEL: MODEL...

  • Page 11: Schematic Diagram-2 (Front)

    SCHEMATIC DIAGRAM-2 (FRONT) IC301 LC866532A-5L31RX MODEL EZ MODEL K MODEL...

  • Page 12: Wiring-3 (Tuner)

    WIRING-3 (TUNER) MW / LW...

  • Page 13: Schematic Diagram-3 (Tuner)

    SCHEMATIC DIAGRAM-3 (TUNER) BAND BUFFER LOOP BAND SW TU+B MW TRACKING BAND EZ MODEL LW TRACKING L941,TC942 L772 L771 MW IF ADJ DC BALLANCE / MONO DISTORTION SIGNAL : FM :MW/LW TUNER C.B...

  • Page 14: Electrical Adjustment/Practical Service Figure

    ELECTRICAL ADJUSTMENT 2/2 PRACTICAL SERVICE FIGURE < TUNER SECTION > < TUNER SECTION > < FM SECTION > 1. Clock Frequency Check IHF Sensitiviy: Less than 13dB Settings: • Test point: TP2 (CLK IC770 pin30) (THD 3%) (at 108.0/98.0MHz) Method: Set to MW 1602kHz and check that the test Less than 14dB point becomes 2052kHz±45Hz (EZ).

  • Page 15: Ic Description

    IC DESCRIPTION IC, LC866532A-5L31RX Pin No. Pin Name Description ________________ I-MACMD Command input from master microprocessor. O-SCMD Serial data output to master microprocessor. 1-RDSDATA RDS data input. ___________ O-PAMP Power supply control output (power supply ON/OFF of POWER AMP). — O-CLK Connected to TUNER PLL IC LC72131 pin-5 CL.
  • Page 16 Pin No. Pin Name Description VDD2 — Microprocessor power supply. (µ-com 5V). 91, 92 P04, P05 — O-MUTE Main mute output. — 95-97 P10-12 — O-MASI Serial data output to master microprocessor. ____________ I-MASO Serial data input from master microprocessor. I-MACLK Transfer clock input from master microprocessor.

  • Page 17: Ic Block Diagram

    IC BLOCK DIAGRAM IC, BU1920FS IC, LA1837 IC, LC72131...

  • Page 18: Mechanical Exploded View 1/1

    MECHANICAL EXPLODED VIEW 1/1 P.C.B HT-SINK,MAIN ASSY HT-SINK,SUB P.C.B P.C.B P.C.B SHLD-PLATE PT P.C.B SHLD-PLATE P.C.B SUB.PT P.C.B CHAS,MAIN...

  • Page 19: Mechanical Parts List 1/1

    MECHANICAL PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 8Z-CL1-056-010 WINDOW,DISP EX<88<K>> 17 81-669-025-010 FOOT, H11 1 8Z-CL1-055-010 WINDOW,DISP EZ<89<EZ>> 18 8Z-CL1-654-010 F-CABLE,2P 2.5 170MM SUBPT 2 8Z-CLB-013-010 PANEL,RX CS<88<K>> 19 8Z-CL1-623-010 PT,E 2 8Z-CLB-015-010 PANEL,RX CS EZ<89<EZ>>...

  • Page 20: Model No. Fd-Lm88/Fd-Lm89 Disassembly Instructions

    MODEL NO. FD-LM88 DISASSEMBLY INSTRUCTIONS Remove the two screws. Remove the two screws.
  • Page 21 Remove the eight screws and remove the PANEL, REAR FD. While moving up the rear of the PANEL, TOP, remove the PANEL, TOP by pulling it to the front.
  • Page 22 Remove the FFC and cord. Be careful that the FFC especially cannot be removed easily. Remove the screws.
  • Page 23 Remove the two FFCs. Remove the claw and remove the CABI FRFD together with the entire front board.
  • Page 24 While moving up the CD board and the function board, remove the CD board and the function board. You can locate the mechanism deck.

  • Page 25: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-010-197-080 CAP, CHIP 0.01 DM 87-010-553-040 CAP,E 47-16 GAS 87-A20-446-010 C-IC,LA9241ML 87-010-404-040 CAP,E 4.7-50 SME 87-A20-459-010 C-IC,LC78622ED 87-010-196-080 CHIP CAPACITOR,0.1-25 87-A20-445-010 IC,BA5936 87-010-145-080 C-CAP,S 1P-50 CH 8Z-CLB-621-010 C-IC,LC866560-5M02FD 87-A20-455-010...
  • Page 26 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION L150 87-003-171-010 COIL, 15UH FL5R100 SFR452 87-024-436-080 SFR,47K RH063EC L201 87-A50-052-010 COIL,CLOCK 5.76MHZ T1 SFR130 87-A90-787-080 SFR,100K H HOKU W201 8Z-CL1-653-010 F-CABLE,19P 1.5 FG FUNCTION C.B WH201 87-A90-878-010 HLDR,WIRE 19P 1.5 51016 C501 87-010-197-080...

  • Page 27: Transistor Illustration

    IC BLOCK DIAGRAM IC, BA5936 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION KEY C.B MOTOR C.B S801 87-A91-024-080 SW,TACT KSH0611BT CNA101 88-802-051-290 CONN ASSY,5P S802 87-A91-024-080 SW,TACT KSH0611BT CNA103 8Z-CL1-670-010 CONN ASSY,3P H O/C Rog CURRENT S803 87-A91-024-080 SW,TACT KSH0611BT...

  • Page 28: Wiring-1 (Cd)

    WIRING-1 (CD) CD C.B (COMPONENT SIDE)
  • Page 29 CD C.B (CONDUCTOR SIDE) EZ MODEL...

  • Page 30: Schematic Diagram-1 (Cd 1/2)

    SCHEMATIC DIAGRAM-1 (CD 1/2)

  • Page 31: Schematic Diagram-2 (Cd 2/2)

    SCHEMATIC DIAGRAM-2 (CD 2/2) EZ MODEL IC201 LC866560W-5M02FD...

  • Page 32: Wiring-2 (Tape)

    WIRING-2 (TAPE)

  • Page 33: Wiring-3 (Key)

    WIRING-3 (KEY)

  • Page 34: Wiring-4 (Func)

    WIRING-4 (FUNC) DECK C.B TO/FROM TAPE C.B CN302...

  • Page 35: Schematic Diagram-3 (Tape/Func/Key)

    SCHEMATIC DIAGRAM-3 (TAPE/FUNC/KEY) DECK...

  • Page 36: Test Mode

    TEST MODE ELECTRICAL ADJUSTMENT CD C.B 1. CD Test Mode 1-1. How to Start Up the CD Test Mode While pressing the “CD OPEN/CLOSE” button, connect the AC plug to the power outlet. When the CD test mode is started up, When the CD test mode starts up, all displays turn on. (VREF) (RF) SFR130...

  • Page 37: Electrical Adjustment

    Method: 1) Input the 1kHz signal and adjust the input signal level for -20 dB. 2) Set the XR-M88 into the record mode and record the 1kHz and 10kHz signals alternately. 3) Play back the segment that is recorded in step 2) and adjust SFR351 and SFR352 so that both the 1kHz and 10kHz signals have the same level within 0 dB +3/-4dB.

  • Page 38: Ic Description

    IC DESCRIPTION IC, LC866560W-5M02FD Pin No. Pin Name Description O-MACMD Command output to slave microprocessor. ____________ I-SCMD Command input from slave microprocessor. Serial data send/receive preparation completion output for MD UNIT control. (TAPE O-ARDY REC MUTE output). Serial data transfer request for MD UNIT control. (FWD/RWD switching output O-SREQ during TAPE PLAY/REC).
  • Page 39 Pin No. Pin Name Description I-OIRT I-RDS _________ I-BBE INITIAL DIODE MATRIX input. _______________ I-DOLBY _______ I-TAPE/MD _____________ I-DEMO 66-71 PE2-PE7 VDD4 — Microprocessor power supply. (µ-com 5V). DECK MECA MAIN MOTOR control output. 74, 75 PF1, PF2 DECK MECA SUB control output. 76, 77 PF3, PF4 —...
  • Page 40 IC, LA9241ML Pin No. Pin Name Description Pin to which external pickup photo diode is connected. RF signal is created by adding FIN2 with the FIN1 pin signal. FE signal is created by subtracting from the FIN1 pin signal. FIN1 Pin to which external pickup photo diode is connected.
  • Page 41 Pin No. Pin Name Description Pin from which TES signal is output to DSP. “High Frequency Level” is used to judge whether the main beam position is on top of bit or on top of mirror. SLOF Sled servo off control input pin. 39, 40 CV–, CV+ CLV error signal input pin from DSP.
  • Page 42 IC, LC78622ED Pin No. Pin Name Description DEFI Defect sense signal (DEF) input pin. (Connect to 0V when not used). Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V. Phase comparator output pin to control external VCO. VVSS —...

  • Page 43: Ic Block Diagram

    IC BLOCK DIAGRAM IC, BA5936 Pin No. Pin Name Description XVDD — Crystal oscillator power supply pin. XOUT Pin to which external 16.9344 MHz crystal oscillator is connected. XVSS — Crystal oscillator GND pin. Be sure to connect to 0V. Rog CURRENT DETECTOR TERMINAL...

  • Page 44: Mechanical Exploded View 1/1

    MECHANICAL EXPLODED VIEW 1/1 MECHANICAL PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 8Z-CL1-014-010 PANEL,CD 31 8Z-CL1-025-010 CAP, UP 2 8Z-CL1-012-010 WINDOW,CD 32 8Z-CL1-026-010 CAP, OPEN 3 8Z-CL1-004-010 CABI,TOP FD 33 8Z-CL1-206-010 BTN,CONT 4 8Z-CL1-007-010 BOX,CD...

  • Page 45: Tape Mechanism Exploded View 1/1

    TAPE MECHANISM EXPLODED VIEW 1/1 TAPE MECHANISM PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 S1-970-015-070 CHASSIS RIVET ASY 26 S1-950-140-030 WIRE CLUMPER 2 S1-970-020-010 MAIN PLATE 27 S1-970-113-010 FL CAPSTAN ASSY 3 S1-970-020-020 B GEAR 28 S1-970-110-060...

  • Page 46: Cd Mechanism Exploded View 1/1

    MODEL NO. SX-LM200 CD MECHANISM EXPLODED VIEW 1/1 SPEAKER DISASSEMBLY INSTRUCTIONS Type.1 Type.4 Insert a flat-bladed screwdriver into the position indicated by the TOOLS arrows and remove the panel. Remove the screws of each speaker 1 Plastic head hammer unit andthen remove the speaker units. 2 (-) flat head screwdriver 3 Cut chisel Type.2...

  • Page 47: Speaker Parts List 1/1

    SPEAKER PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION 1 8Z-CP1-012-010 CORD,SP 2 8Z-CP1-006-010 GRILLE,FRAME ASSY<YJTN> 2 8Z-CP1-017-010 GRILLE,FRAME ASSY B<YJBN> 3 8Z-CP1-003-010 PANEL,FR<YJTN> 3 8Z-CP1-015-010 PANEL,FR B<YJBN> 4 8Z-CP1-005-010 PANEL,TW<YJTN> 4 8Z-CP1-016-010 PANEL,TW B<YJBN> 5 8Z-CP1-601-010 SPKR, W 100 6 88-CL1-937-010 SPKR,TW 25 ACCESSORIES/PACKAGE LIST...
  • Page 48 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 Printed in Singapore 931196...

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